Minecraft Java 1.21 Mods
Browse 3,671 free mods for Minecraft Java 1.21 — popular picks include Zorana's Spawner Mod, Shriek Control, Pesky Vexes.
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Zorana's Spawner Mod
A simple mod that adds crafting recipes for the Mob Spawner and some Spawn Eggs.
Shriek Control
A Minecraft mod that gives players full control over which mobs spawn from a Sculk Shrieker. Customize encounters, fine-tune the danger lurking in the Deep Dark.
Pesky Vexes
Datapack that makes vexes not die after 5 min when named preserve
vanilla gunpowder crafting
Blaze Powder + Coal/Charcoal + Bone Meal
Mobs Fear Creeper
This adds so that if a creeper or a tnt is going to explode, the mob will run away.
technis
TECHNIS is a voice-activated AI assistant for Minecraft 1.21.4 - like Jarvis. Speak to the mic, TECHNIS sees your inventory, health, mobs, and replies with speech. Animated orb HUD, proactive alerts, info panel, in-game config. Requires Groq API key.
Duckzi's Opossums
This project adds Opossums to your minecraft world!
TheHandOKill
Small mod adds the iconic "space erasure" sound that plays every time you kill a mob with a single hit
Weird_Update
This mod is Intense and weird...
Mob Nudge
This Mod adds a simple way to move mobs through the use of commands by pixels.
CreeperBoom
Control the behavior of Creepers after exploding
Pigfull Portals - Bedrock Goldfarms
The great and famous Bedrock Edition gold farm functionality but now on JAVA edition ! (check description)
Enhanced Mobs+
Enhanced Mobs makes vanilla hostile mobs smarter and more dangerous without adding any new mobs or crazy mechanics. It keeps the vanilla feel, but improves how mobs behave in combat. Built for Fabric.
The Sneaky Creeper
Adds cloaking Creepers that divide into 2 mini sneaky creepers upon death. Be Scared.

Craftable Mob Eggs
With this project you can simply craft mob eggs. Perfect for survival worlds!

The World Of Bob
A silly mod themed around a new mod named bob, that adds bob versions of Minecraft mobs and even a bob dimension!
cobblestone to prismarine shards in cauldron
vanillatweaks cauldron mud datapack modifed to convert cobblestone into prismarine shards.
TalkCraft
The Blocks Have Had Enough of You, "GET OFF MY LAWN!!!"
Random stones
This datapack slightly changes the mining process making it a bit less repetitive by adding some random events that can be negative or positive.
TougherThanLlamas
The modern reincarnation of the hardest mod ever created for Minecraft
OrjusBlockStats
OrjusBlockStats is a powerful and lightweight flexible block tracking plugin designed for survival and competitive Minecraft servers.
Gateway Invasion!
This mod adds a collapsed dimension!
Aether Smithing
Progression-based smithing for the Aether mod.

RPG Errands
Villagers who want something

randomitems-mod
Adds /randomitems, /randommobs, /randomweapon, /randomarmor, /randomtool and /randomquest commands that periodically give random items, spawn random mobs, swap your gear, or assign 5-minute random quests with a boss bar and personal sidebar.
HCG Random Drops
Random Drops minigame where every block broken drops something random (mobs toggleable). Addon for HCG plugin.
Villager rollback
A datapack that is able roll back villagers that recently died. All of the villagerdata is saved.
Chaind+
Chaind+ is a Minecraft plugin that recreates the game "Chained Together" in Minecraft: players are connected to each other with an invisible chain and must always stay close to their group.
Sniffer Egg Fall Block
This Mod Allows you placing a Sniffer Egg On the Air can fall and damage any entities
Evoker Prevention
Prevents Evokers from spawning.
Harvest In Peace
Harvest In Peace while the monsters rest in peace! Say good bye to all hostile mobs while being able to get hungry, farm and eat.
Kaizen Torches
Upgrade your torches with iron , gold , diamond to expand the prevent mob spawn radius !
Population Control
Changes the mob spawning and bed mechanics.
Hapyy ghast is also a balloon
Happy Ghast is also a balloon is a fun and lightweight Minecraft datapack that adds a new advancement: just observe a Ghast or a "happy" Ghast through a spyglass to earn it!
Trick or Treat Events
A pack that adds NPCs that can either give you a treat or a nasty trick...
Hyrinity
Overall content modification that alters base game. Adds new content to the game.